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Low Temp Furnace Model ITL-M-17701 13-07/20
The image below illustrates a simplified graphical view of the process.
Figure 9
Isotech standard offset values are set at the following temperatures:
This is listed as Channel 1 on the controller
1. 156°C
2. 232°C
3. 420°C
4. 500°C
Points 5, 6, 7 and 8 are unused as standard.
Please follow the procedure below to linearise the controller display value:
1. Set the furnace up as it will be used (Figure 18)
2. Place a reference thermometer inside the cell or equalizing block
3. Set the furnace to the lowest useable temperature (recommendation would be to use the temperatures
listed above)
4. Allow the system the thermally stabilise
5. Press the PAGE button to enter the SUPERVISOR menu
6. Scroll to the CHANNELS tab and enter with the SCROLL button
7. Scroll to the ISOTECH tab and enter with the SCROLL button
8. Scroll to CAL STATUS and enter with the SCROLL button
9. Scroll to POINT 1 and enter the value from the reference thermometer
The controller is now ready to accept a value. Ensure the equipment is thermally stable, you will
now need to use the temperature value displayed by the reference thermometer.
10. Record the value on the reference thermometer and scroll to DISPLAY VALUE tab and press enter
11. This will bring up a soft keyboard, use this keyboard to enter the exact temperature displayed by the
calibrated reference standard
12. Press the PAGE button to enter the value, the controller will ask you to confirm the settings. Select
YES and enter the value
13. The controller will now accept the value and move to POINT 2 on the display
14. Exit back to the homepage and check the value on the relevant display window
15. When confirmed, move to the next temperature and repeat the process for point 2 and so on
Important Note:
Ensure that Point 1 is always used as the lowest temperature and offsets are entered in
ascending order. If the values are place out of order then the controller will disregard them.
